The Influence of Selected Parameters of the Mathematical Model on the Simulation Performance of a Municipal Waste-to-Energy Plant Absorber

Michał Jurczyk (), Marian Banaś (), Tadeusz Pająk, Krzysztof Dziedzic, Bogusława Łapczyńska-Kordon and Marcin Jewiarz
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Michał Jurczyk: Total Office, Zawierciańska 4, 32-310 Klucze, Poland
Marian Banaś: Department of Power Engineering and Environmental Protection, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Tadeusz Pająk: Department of Power Engineering and Environmental Protection, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Krzysztof Dziedzic: R&D Department, Dziedzic Transport, Świętokrzyska 22b, 34-300 Żywiec, Poland
Bogusława Łapczyńska-Kordon: Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, Balicka 120, 30-149 Kraków, Poland
Marcin Jewiarz: Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, Balicka 120, 30-149 Kraków, Poland

Energies, 2024, vol. 17, issue 24, 1-23

Abstract: The primary research aim of this manuscript was to present a simplified absorber model and analyse the simulation results of the absorber model created to which, by design, only water was added and the outlet flue gas temperature was optimal. The obtained simulation results of the simplified absorber model were appropriately compared with the operational results of absorbers operating in professional WtE installations. This study focused on the simulation duration. The primary tool used in the paper is OpenFOAM (v2112). Two solvers were used for the calculations: ReactingParcelFoam and LTSReactingParcelFoam. They ran numerical tests on simplified absorber models. We evaluated the results according to the simulation time. We also examined the difference between the measured and calculated flue gas outlet temperatures. The results will guide further research on the absorber. They will speed up and improve the modelling of chemical processes. The only challenge was to define the chemical reactions and add a calcium molecule to the water droplet model. This work shows that we can simplify the absorber’s geometric model. It kept a low relative error and cuts the compute time. Using a local time step instead of a global one in numerical calculations significantly reduced their run time. It did this without increasing the relative error. The research can help develop complex three-phase flow models in the absorber in the future.

Keywords: WtE plant; flue gas cleaning; absorber; simulation; OpenFOAM (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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